(Island Wind) was an experimental destroyer of the Imperial Japanese Navy during World War II, and intended as the lead ship in a projected new "Type C" of destroyers. She was the only destroyer to be armed with 15 torpedo tubes, each capable of firing the deadly Type 93 "Long Lance" torpedo. The ship also served as a testbed for an enormously powerful, high-temperature, high-pressure steam turbine that was able to develop . This made her one of the fastest destroyers in the world: her design speed was , but on trials she made . Background Ordered in 1939 under the 4th Naval Armaments Supplement Programme, Shimakaze was laid down at Maizuru Naval Arsenal in August 1941 and completed on 10 May 1943. Under the 1941 5th Naval Armaments Supplement Programme, a total of 16 Shimakaze-class destroyers were budgeted, with long term plans to build a total of 32 vessels to equip four destroyer squadrons. However, the complexity of the design, coupled with the lack of industrial capacity and resources during the Pacific War prevented these plans from being realized. Design Shimakaze was based on a lengthened version of the design, with an additional 25 feet of length to mount an additional quintuple torpedo launcher amidships. The additional weight caused the design to be top-heavy, so no torpedo reloads were carried; however, with a broadside of three quintuple mounts which could be trained to either port or starboard, Shimakaze had one of the largest torpedo capacities of any World War II destroyer. The main battery used on the Yugumo-class of six Type 3 127 mm 50 caliber naval guns in three twin-gun turrets, one superfiring pair aft and one turret forward of the superstructure, was retained as well as the anti-aircraft battery of two twin-mount Type 96 AA guns, and anti-submarine capability of 18 depth charges. She was also equipped with a Type 22 radar. Her new experimental high temperature and pressure Kampon boilers developed , powering a new type of turbine, which generated 50 percent more power than typical turbines used in previous destroyers. She was expected to reach a speed of 39 kn. However, during her trials on 7 April 1943, she was clocked at , faster than initially planned. In June 1944, during repairs and refit in Japan, her anti-aircraft capacity was enhanced with the additional set of triple Type 96 guns, seven single Type 96 guns,